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581
resultados
Última actualización
10/11/2025 [06:53:00]
Resultados 75 a 100 de 581
Resumen de: EP4641728A1
The present invention relates to a lithium secondary including: a positive containing a positive electrode active material; a negative electrode containing a negative electrode active material; a separator provided between the positive electrode and the negative electrode; and an electrolyte, wherein the positive electrode active material includes a lithium composite transition metal compound including nickel (Ni), cobalt (Co), and manganese (Mn); the lithium composite transition metal compound includes at least one of single particles and quasi-single particles, the average particle diameter (D50 =) of the at least one of the single particle and the pseudo-single particle having an average particle diameter (D50) of 1 µm to 10 µm (both inclusive); the single particle is composed of one nodule and the pseudo-single particle is a composite composed of 30 or less nodules; and the negative electrode active material includes silicon oxide represented by SiOx (0<x<2), the silicon oxide represented by SiOx (0<x<2) having an average particle diameter (D50) of 1 µm or greater, and at least one of the single particles and pseudo-single particles having an average particle diameter (D50) smaller than the average particle diameter (D50) of the silicon oxide represented by SiOx(0<x<2).
Resumen de: EP4641684A1
The present invention relates to an anode composition, an anode for a lithium secondary battery, comprising same, a lithium secondary battery, and a method for preparing the anode composition, the anode composition comprising a silicon oxide represented by SiOx (0<x<2), graphite, and an anode conductive material, wherein the graphite comprises natural graphite and artificial graphite, and the BET specific surface area values of the silicon oxide represented by SiOx (0<x<2), the natural graphite, and the artificial graphite are amounts increasing in the order of artificial graphite < natural graphite < silicon oxide represented by SiOx (0<x<2).
Resumen de: EP4641803A1
A battery pack includes: a plurality of battery cells; a pack case that accommodates the plurality of battery cells; and a venting unit mountable in the pack case, and provided with a venting device that discharges a gas generated in the plurality of battery cells to an outside of the pack case, and a protection cover that covers at least a portion of the venting device.
Resumen de: EP4641743A1
According to the present disclosure, provided is an all-solid-state battery, particularly an all-solid-state battery in which a lithium layer is formed during a charging process without forming a separate negative electrode active material layer on a negative electrode current collector during the manufacturing process of the battery, wherein energy density may be further maximized by not including amorphous carbon between the negative electrode current collector and a solid electrolyte layer, and the lithium dendrites may be prevented from growing through the gaps in the solid electrolyte layer as charging and discharging processes are repeated, even without including amorphous carbon, thereby solving the defects of generating short circuits or capacity reduction, and further, exhibiting excellent capacity retention according to the cycle.
Resumen de: EP4641680A1
A positive electrode active material for a rechargeable lithium battery, a positive electrode containing the same, and a rechargeable lithium battery including the same as provided. A positive electrode active material includes titanium (Ti) in an amount of about 1000 ppm to about 9000 ppm, at least one primary particle, the primary particle having a size of about 50 nm to about 300 nm, and a compound represented by Formula 1: Formula 1 LiaMnxFe1-xMyPO4-bwherein, in Formula 1 above, 0.8≤a≤1.2, 0.2≤x≤0.8, 0≤y≤0.05, 0≤b≤0.05, and M is at least one element selected from the group consisting of Al, Mg, Zr, V, Zn, Nb, K, Y, B, and Cu.
Resumen de: EP4640636A1
A positive electrode active material, a method of preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a rechargeable lithium battery including the positive electrode are disclosed. The positive electrode active material includes core particles including a layered lithium nickel-based composite oxide and having a single particle shape; and a coating layer provided on the surface of the core particles and including cobalt and zirconium; wherein the lithium nickel-based composite oxide of the core particles includes aluminium and zirconium, a nickel content (e.g., amount) is greater than or equal to about 60 mol%, an aluminium content (e.g., amount) is about 0.8 mol% to about 1.5 mol%, and a zirconium content (e.g., amount) is about 0.1 mol% to about 0.3 mol%, based on 100 mol% of total metals excluding lithium.
Resumen de: EP4641690A2
Disclosed are positive electrode active materials for a rechargeable battery, positive electrodes including the positive electrode active materials, and recharageable lithum batteries including the positive electrode active materials. The positive electrode active material comprises first particles comprising a compound having an olivine structure, second particles comprising a compound having a spinel structure, and third particles. An amount of the third particles is about 0.5 parts by weight to about 1.5 parts by weight based on 100 parts by weight of the positive electrode active material.
Resumen de: EP4641772A1
This application provides a box (10), a battery (100), and an electric device. The box (10) includes a bottom plate (110) and a mounting beam (120), where the bottom plate (110) includes an outer wall surface (111), the mounting beam (120) includes a connecting portion (121), the connecting portion (121) is configured to be connected to the bottom plate (110), and at least a portion of the connecting portion (121) is in contact with the outer wall surface (111). In the box (10) provided in the embodiments of this application, the mounting beam (120) is connected to the bottom plate (110) through the connecting portion (121) to increase a contact area with the bottom plate (110). Therefore, a larger contact area between the bottom plate (110) and the connecting portion (121) can disperse stress between the bottom plate (110) and the mounting beam (120), meaning that a risk of fracture between the bottom plate (110) and the connecting portion (121) is lower, and the box (10) is more reliable when mounted on a main body of the electric device through the mounting beam (120) for use.
Resumen de: EP4640638A1
Disclosed are a method of preparing a positive electrode active material, a positive electrode active material prepared according to the method, a positive electrode including the positive electrode active material, and a rechargeable lithium battery including the positive electrode. The method includes (i) mixing a nickel-based precursor and a first lithium raw material and performing a first heat treatment at about 500 °C to about 750 °C to prepare a first fired product, and (ii) mixing the first fired product and a second lithium raw material and performing a second heat treatment at about 650 °C to about 850 °C to prepare a positive electrode active material in the form of secondary particles including a lithium nickel-based composite oxide, the secondary particles being formed by agglomerating a plurality of primary particles. A molar ratio (L<1>) of lithium in the first lithium raw material to a total metal of the nickel-based precursor is about 0.2 to about 0.9, a molar ratio (L<2>) of lithium in the second lithium raw material to a total metal excluding lithium in the first fired product is about 0.1 to about 0.8, and about 0.9 ≤ L<1>+L<2> ≤ about 1.1.
Resumen de: EP4641649A1
Disclosed are a negative electrode for a rechargeable lithium battery, a method of manufacturing negative electrode, and a rechargeable lithium battery including the negative electrode. The negative electrode includes a negative electrode current collector, and a negative electrode active material layer located on the negative electrode current collector and including a negative electrode active material and a binder. The negative electrode active material includes a core including a material capable of reversibly intercalating and deintercalating lithium ions; a surface treatment layer located on a surface of the core and including a compound.
Resumen de: EP4641747A1
An electrode assembly according to an embodiment of the present disclosure comprises: a first electrode; a second electrode; and a separator interposed between the first electrode and the second electrode. The first electrode, the second electrode, and the separator are wound together to form a jelly roll structure. The first electrode includes a first electrode current collector and a first active material part formed by applying an electrode active material to one side or both sides of the first electrode current collector. The second electrode includes a second electrode current collector and a second active material part formed by applying an electrode active material to one side or both sides of the second electrode current collector. A first exposed part to which the electrode active material is not applied in the first electrode current collector extends in a first direction, and a second exposed part to which the electrode active material is not applied in the second electrode current collector extends in a second direction opposite to the first direction. The first exposed part and the second exposed part have a bending point for each winding turn. The length from the end of the first electrode current collector in the second direction to the bending point of the first exposed part gradually increases for each winding turn along the radial direction of the jelly roll structure. The radial direction is a direction directed from a core part to an outer part of the jell
Resumen de: EP4640360A1
A battery module according to the present disclosure includes a housing that has an internal accommodating space; and a plurality of battery cells that are located in the internal accommodating space, in which the housing includes a welded joint in which a first base material of a first alloy and a second base material of a second alloy are welded, the welded joint includes a defect area in which the first base material and the second base material are welded and joined and a repair area located on the defect area, the repair area has a lower silicon concentration than the defect area, and the repair area satisfies the following Expression 1 or 2. 0≤h1≤0.15t0≤h2≤0.2mm+0.3t
Resumen de: EP4641724A1
The present disclosure relates to a battery cell comprising: an electrode assembly including a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode; a case having a first opening at one end and forming a space in which the electrode assembly is accommodated through the first opening; and a cap assembly coupled with the case to form the space together with the case and closing the first opening.
Resumen de: EP4641656A1
Disclosed are positive electrode active materials for a rechargeable battery, positive electrodes including the same, and rechargeable lithium batteries including the same. For example, the positive electrode active material includes first particles including a compound of Chemical Formula 1 and having a first average particle diameter, and second particles including a compound of Chemical Formula 2 and having a second average particle diameter that is greater than the first average particle diameter. The content of the first particles is greater than or equal to the content of the second particles.
Resumen de: US2025099699A1
An aerosol delivery device includes at least one housing, a heating element, a sensor, and a microprocessor coupled to the heating element and the sensor. The at least one housing encloses a reservoir configured to retain an aerosol precursor composition. The sensor is configured to produce measurements of differential pressure between an ambient atmospheric pressure and a pressure caused by airflow through at least a portion of the aerosol delivery device. The sensor is also configured to convert the measurements of differential pressure to corresponding electrical signals. The microprocessor is configured to receive the corresponding electrical signals and operate in an active mode only in an instance in which the differential pressure is at least a 10 threshold differential pressure. The microprocessor in the active mode is configured to control the heating element to activate and vaporize components of the aerosol precursor composition.
Resumen de: EP4641691A1
Positive electrode active materials, their manufacturing methods, and rechargeable lithium batteries are provided. A positive electrode active material comprises a first particle that includes a compound represented by Chemical Formula 1 and has a first average particle diameter. A ratio (I<sub>D</sub>/I<sub>G</sub>) of intensity (I<sub>D</sub>) of D peak at a wave number of about 1340±10cm<sup>-1</sup> in the Raman spectrum obtained from Raman spectroscopy to intensity (I<sub>G</sub>) of G peak at a wave number of about 1590±10cm<sup>-1</sup> in the Raman spectrum obtained from Raman spectroscopy is in a range of about 0.5 to about 1.5.
Resumen de: WO2025225933A1
The present disclosure relates to a secondary battery. The technical problem to be solved is to provide a secondary battery, wherein a separate terminal is configured to be connected by welding, thereby reducing the overall thickness of the terminal compared to the prior art, and thus ensuring a relatively large battery capacity. To this end, the present disclosure provides a secondary battery comprising: an electrode assembly having a first electrode plate, a separator, and a second electrode plate; a cylindrical case in which the electrode assembly is accommodated; and a terminal coupled to a through-hole formed in the upper surface of the case. The terminal comprises: a first terminal plate coupled to the through-hole of the case; and a second terminal plate and a third terminal plate coupled to one side and the other side of the first terminal plate, respectively. The first terminal plate and the second terminal plate are coupled to each other by welding, and the first terminal plate and the third terminal plate are coupled to each other by welding.
Resumen de: KR20250154941A
본 발명은 전해액 첨가제, 이를 포함하는 전해액 및 이차전지에 관한 것으로, 본 발명에 따르면 NMX 전지, LMR 전지, LMX 전지, OLO 전지, LCO 전지, 또는 DRX 전지를 비롯한 다양한 리튬이차전지 양·음극에 안정한 피막을 형성하여 전지 내부의 부반응을 억제하고 충방전 저항이 낮아 충전 효율 및 출력이 향상될 수 있고, 고온 조건에서 장시간 보관하더라도 전지의 저항 증가가 억제될 수 있으며, 전해액 성분의 분해에 의한 가스 발생 또한 현저하게 억제되어 장기 수명 및 고온 용량 유지율이 우수하며, 전지 양극의 불안정성에 의한 부반응 산물 중 불산을 효과적으로 스캐빈징(scavenging)하여 전해액의 산도 증가 및 양극의 전이금속이온 용출을 억제하여 전지 특성 및 수명이 탁월한 이차전지를 제공하는 효과가 있다.
Resumen de: KR20250154932A
본 발명의 일 실시예에 따르면, 양극 집전체, 및 테두리에 양극 무지부가 형성되도록 상기 양극 집전체의 일면에 형성되어 있는 양극재층을 포함하는 양극, 음극 집전체, 및 테두리에 음극 무지부가 형성되도록 상기 음극 집전체의 일면에 형성되어 있는 음극재층을 포함하는 음극, 및 분리막을 포함하고, 상기 양극재층과 상기 음극재층이 서로 분리막을 사이에 두고 마주하도록 적층되어 있으며, 상기 양극재층, 상기 음극재층, 및 상기 분리막으로 이루어진 군에서 선택되는 하나 이상에는 경화된 겔 전해질이 함유되어 있는 바이폴라 단위셀, 이의 제조방법, 및 상기 바이폴라 단위셀이 2 이상 적층된 구조의 바이폴라 전지가 제공된다.
Resumen de: US2025329773A1
A method of manufacturing a secondary battery includes preparing an electrode assembly including a first electrode plate, a second electrode plate, and a separator, attaching a top tape to an upper end portion of the electrode assembly, attaching a bottom tape to surround a lower end portion of the electrode assembly, attaching a body tape to surround the upper end portion of the electrode assembly, and inserting the electrode assembly into a pouch, wherein each of the first and second electrode plates includes a current collector, an active material layer on the current collector, an uncoated portion at an end of the current collector adjacent to the electrode active material layer, and an electrode tab at an end portion of the uncoated portion.
Resumen de: US2025329717A1
The present disclosure provides an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the electrode. The electrode includes an electrode active material layer, wherein the electrode active material layer is a dry electrode film including an active material having a catecholamine-based compound-containing layer and a first binder having a catecholamine-based compound-containing layer.
Resumen de: US2025329733A1
A rechargeable lithium battery including a positive electrode active material, the positive electrode active material including a first particle containing a compound represented by Formula 1 and having a first average particle diameter:wherein, in Formula 1 above, 0.8≤a1≤1.2, 0.45≤x1≤0.55, 0.45≤y1≤0.55, 0
Resumen de: WO2025225857A1
The present invention relates to an electrode current collector, a manufacturing method therefor, and a secondary battery electrode assembly comprising same, the collector comprising: a first metal layer; a polymer resin layer provided on one surface of the first metal layer; and a second metal layer provided on one surface of the polymer resin layer, wherein in some region of an uncoated part corresponding to an electrode tab, the polymer resin layer is removed so that the first metal layer and the second metal layer face each other.
Resumen de: WO2024192678A1
There is provided an aerosol-generating system (100) for generating an inhalable aerosol from an aerosol-forming substrate (21). The aerosol-generating system comprises a lithium-ion battery (12). The battery comprises a cathode (122), the cathode comprising a cathode-active material (1222). The cathode-active material at least one compound selected from a first group of compounds and at least one compound selected from a second group of compounds. The first group of compounds comprises lithium manganese iron phosphate, lithium iron phosphate, or a combination thereof. The second group of compounds comprises lithium nickel manganese cobalt oxide, lithium nickel cobalt aluminium oxide, lithium cobalt oxide, or a combination thereof.
Nº publicación: KR20250154836A 29/10/2025
Solicitante:
삼성에스디아이주식회사
Resumen de: US2025329731A1
A positive electrode active material for a rechargeable lithium battery, a positive electrode containing the same, and a rechargeable lithium battery including the same as provided. A positive electrode active material includes titanium (Ti) in an amount of about 1000 ppm to about 9000 ppm, at least one primary particle, the primary particle having a size of about 50 nm to about 300 nm, and a compound represented by Formula 1:wherein, in Formula 1 above, 0.8≤a≤1.2, 0.2≤x≤0.8, 0≤y≤0.05, 0≤b≤0.05, and M is at least one element selected from the group consisting of Al, Mg, Zr, V, Zn, Nb, K, Y, B, and Cu.
BOPI
Sede Electrónica
